Hanger for building purposes.



No.803,089. PATBNTED' OCT. 3l, 1905.. C. H. BIGELOW, Jn. HANGER FOR BUILDING PURPOSES.

APPLIGATION FILED APE. 1E, 1905.

In? e-/z ha r:

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L, y y j? UTB TATES Afr HANGER lFon BUILDING euneosae.

No.' eoaoee.

Specication of Letters Patent.

Patented ont. ai, ieee.

Application tiled April 15, 1905. Serial'No. 255.708.

vTo (1,17/ whom if muy concern,.-

Be it known that l. CHARLES H. BIenLow, Jr., a citizen of the United States, residing at St. Paul, in the county of Ramsey and State of Minnesota, have invented a new and useful Hanger for Building Purposes, of which the following is a specification.

My invention relates to improvements in hangers for building purposes, and particularly to a hanger adapted to be embedded in concrete and to furnish means for attaching fixtures to beams, Walls, or othersurfaces of such material after the same has set or hardened.

The purpose of the invention is to avoid the necessity of drilling into the set concrete for.

attachment may be used in place of the usual bolt if the connection requires it. The base is also furnished Withfpins or nails 7 cast in the hanger. The purpose of these pins is to permit the hanger to be centered in the form and fastened during the process of embedding it in the concrete, and after the concrete has set they may be cut away. The lower part of the base flares outwardly at 8, so that when it is embedded in the concrete suitablesurfaces will be presented for the union of the hanger and concrete. The keyhole-opening 5 permits the use of stock sizes of machinebolts and is of sufficient length to allow a shifting of the position of the bolts, and thus secure perfect alinement of a series of them when the hangers are in position. By placing a nut 9 in the opening a rigid connection can be made at any point along;r the slot 10. When the device is embedded in the concrete, its lower face e is flush with -the surface of the beam or wall in which it is inserted. In

Fig. I the hanger is thus embedded in a con` crete beam 13 (shown in broken lines) and carries an electric-wire molding 14,(also shown in broken iines.)

Tt is obvious that a hanger of this characcrete surfaces.

ter is specially adapted to fasten heating or automatic-sprinkling pipes, electric-wire moldings, or other similar devices to ceiiings or to attach shelving or other fixtures to walls. This device may be inserted inthe concrete without injury to either the hanger or the concrete, and the upper flanges or wings 2 are suciently distant from the surface of the concrete so that the strain is carried above or beyond the metal reinforcements which are usual in such construction. The form of the lower portion of the hanger adapts it to unite with the concrete without the possibility ofV getting the latter into the recess 11 in the base. The pins 7 hold the hanger rigidly, so that th'e pouring;v of the concrete around the hanger and tamping will not displace it:

The apertures 12 in the frame i serve the double purpose of making the devicel lighter y for shipment and .of furnishing better surfaces for union with the encrete.

1t is obvious that the hanger, if it is desired to have two adjacent series of attachments for fixtures, may be made double with I two keyhole-openings and corresponding recesses for bolts. The faces of the hanger. which are in contact with the concrete are Without abrupt angles` so that sharp corners,

and consequently weak edges of concrete, are

avoided.

Whiie I have termed my device a hangen (because it will perhaps be most often used for making attachments to ceilings) yet it is Y equally efficient for making connections with concrete in any position.

, In practice my device is rigidlyattached to the concrete form or mold by means of the 4 pins or' nails 7. The concrete' is then poured about it with the lower surface of the hanger (shown in liig.v IIT) flush with one of the con- When the concrete has set., the pins 7 may befcut olf and any desired tix ture may be attached tothe hanger (new embedded in the concrete) by means of the bolt 6. This attachment may be made with either 10 the Ahead or'threaded end ofthe bolt in the recess 11. In the latter case absolute rigidity is assured by/screwing the bolt through the nut until the threaded end bears against the upper surface of the recess 11. seen. alinement of a series of {iatures-or of one having several points of attachment 'is secured by moving;r the bolt in the slot before the final adjustment.

Having described my invention, what I 11 As' has been 105 eiaimas new, sind desire to protect by Lettersy Fatent., is

l. A hanger, consisting of an insert for concrete construction, comprising a flanged top and hollow bese` the latter being'` perforated by e. keyhole-opening and provided with pins, in combination with a bolt, for the purposes spmiiied.

2. A device of the class described, com prisa, body portion provided with e ianged iop and hollow base, and means for connectingsaid' base with a xtme.

3. A device of the class described, com prising, in combination, a suitable frame Consisting' of a. single casting, e iixture-support, and

means for adjusting said fixture-support and locking it in said frame. i

4. A hanger, consisting of sin insert for concrete construction, comprising e anged top end hollow bese, the letter being perforated by a keyhole-opening, in combination with a bolt, for the purposes specified.

In testimony whereof I have signed my name to thisspecication in the presence of two subscribing witnesses.

E. M. BonsnL, F. G. BRADBURY. 

